Fractional CTO
Technology leadership for founders who need a clear direction, stronger decision-making and closer alignment between business priorities and engineering.
Explore offerScalexa Consulting / Senior Technology Advisory
Make consequential technology decisions with clarity.
Scalexa Consulting brings 25+ years of engineering experience to founders and technology leaders weighing architecture, delivery and investment choices. Experience delivering for Walmart, Porsche and Fortune 500 enterprises.
Experience for consequential decisions
500+
projects
Experience across complex software and platform work.
25+
years of engineering experience
Now applied to technology leadership, strategy and independent review.
Where we advise
Senior judgement for the decisions that shape technology.
Choose a focused question or explore the offer that best matches the decision in front of you.
Technology strategy & roadmaps
A practical view of options, trade-offs and sequencing to help turn business priorities into an actionable technology direction.
Explore offerPlatform, delivery & risk audits
An independent review of the systems, delivery practices and risks that influence reliability and change.
Explore offerArchitecture & due diligence
Evidence-led technical assessment to inform architecture choices, investment decisions or a proposed transaction.
Explore offerPublished evidence
Selected work
Published work with source links and clearly stated evidence.
Be-IQ
99.9%+ uptime, deployments reduced from hours to under 10 minutes, and zero-downtime rollback capability.
Cityblock Health
Zero data loss during migration—every decimal preserved—and delivery under budget and ahead of schedule.
Pangea Bio
~1000× acceleration over MatchMS, 99.99% agreement with the reference implementation, and peer-reviewed publication in Bioinformatics, Volume 41, Issue 3, March 2025.
Mozilla Foundation
Donations processed from 100+ countries, 99.99% uptime during critical campaigns, and a reported 40% reduction in payment-processing failures.
ListenLayer
99.99% uptime, zero security incidents since deployment, sub-100ms event-processing latency, SOC 2 Type II certification achieved and maintained, releases increased from weekly to multiple daily, and infrastructure costs optimised by 40%.
Makro
4 million monthly page views from 500,000 unique visitors, unified management of web, email, and social channels, and customer intent data captured across 18,000 products within a 55,000+ product catalogue context.
A useful advisory approach
Start with the decision, then work from evidence.
The work is shaped around your context. It makes uncertainty visible, clarifies trade-offs and leaves a practical next step for the people who will own it.
Frame the question
Agree what needs a decision and which constraints matter.
Review the evidence
Use the available business, platform and delivery context.
Set out the options
Make risks, dependencies and trade-offs easier to compare.
Clarify what comes next
Leave a reasoned recommendation and useful next steps.
Start a conversation
Bring the decision you need to make.
Use a discovery call to share the context and discuss a useful next step.
Choose a time for a discovery call and bring the technical decision in front of you.
Book a Free 30-Min CallCalendly opens in a new tab so you can choose a time that works for you.